公开(公告)号：US07580442B2

公开(公告)日：2009-08-25

申请号：US11312539

申请日：2005-12-21

Applicant: Masayoshi Ueno

Inventor： Masayoshi Ueno

IPC: H04B1/00

CPC classification number: H04B1/70754 ,  H04B1/7117 ,  H04B2201/70702 ,  H04B2201/70709

Abstract: A receiving apparatus adjusts a path search window width in path search processing according to the saved timing information, after saving timing information detected at the time of cell search processing. A Radio Frequency (RF) unit receives signals which are sent from a base station and transmitted via a plurality of paths (multi-path). A cell search unit detects scrambling codes specific to the base station in received signals and generates timing information corresponding to the multi-path signals when the same scrambling code is detected in a plurality of timings. A path timing memory unit saves each of the timing information for each of the multi-path signals. A path search unit controls a search window width and search start timing in reference to the timing information of the same scrambling code to perform a path search.

Abstract translation: 在保存在小区搜索处理时检测到的定时信息之后，接收装置根据保存的定时信息调整路径搜索处理中的路径搜索窗口宽度。 射频（RF）单元接收从基站发送并通过多个路径发送的信号（多径）。 小区搜索单元在接收到的信号中检测针对基站的扰码，并且在多个定时中检测到相同的扰码时，生成与多路径信号相对应的定时信息。 路径定时存储单元保存每个多路径信号的每个定时信息。 路径搜索单元参考相同扰码的定时信息来控制搜索窗口宽度和搜索开始时间，以执行路径搜索。

公开(公告)号：US07567825B2

公开(公告)日：2009-07-28

申请号：US10586672

申请日：2005-01-21

Applicant: Tetsuo Ueno ,  Shigetaka Noguchi

Inventor： Tetsuo Ueno ,  Shigetaka Noguchi

IPC: H04B1/38 ,  H04B1/16 ,  H04M1/00

CPC classification number: H04B1/707 ,  H04B2201/70701 ,  H04B2201/70709 ,  H04W52/0229 ,  H04W52/0245 ,  Y02D70/142 ,  Y02D70/40

Abstract: A wireless communication apparatus receives an external signal, and includes (i) a received signal level determination section for detecting a power level of the received signal and (ii) a correlation detection/determination section for detecting a correlation associated with the received signal. Moreover, the wireless communication apparatus switches between reception standby states as required, the reception standby states, including: (a) a normal operation mode in which a shift to a reception state is determined in accordance with whether or not the correlation is detected by the correlation detection/determination section; and (b) a low power consumption mode in which the shift to the reception state is determined in accordance with whether or not a received signal power level is detected by the received signal level determination section. With this, power consumption can be reduced, but a range of reception power of a signal that can be received is not narrowed. That is, the power consumption of the communication apparatus can be reduced, and the communication apparatus is allowed to receive a signal whose reception power falls within a wide range.

Abstract translation: 无线通信装置接收外部信号，并且包括（i）用于检测接收信号的功率电平的接收信号电平确定部分和（ii）用于检测与接收信号相关联的相关性的相关检测/确定部分。 此外，无线通信装置根据需要切换接收待机状态，接收待机状态，包括：（a）根据是否检测到相关性来确定对接收状态的转移的正常操作模式 相关检测/确定部分; 以及（b）低功耗模式，其中根据接收信号电平确定部分是否检测到接收信号功率电平来确定向接收状态的转换。 由此，可以降低功耗，但是可以接收的信号的接收功率的范围不会变窄。 也就是说，可以减少通信装置的功耗，并且允许通信装置接收接收功率落在宽范围内的信号。

公开(公告)号：US07502356B2

公开(公告)日：2009-03-10

申请号：US11180789

申请日：2005-07-14

Applicant: Ji-Ha Lee ,  Ji-Won Lee ,  Sung-Kwon Jo ,  Sung-Hwan Ong

Inventor： Ji-Ha Lee ,  Ji-Won Lee ,  Sung-Kwon Jo ,  Sung-Hwan Ong

IPC: H04B7/216

CPC classification number: H04B1/7115 ,  H04B1/712 ,  H04B2201/70701 ,  H04B2201/70709

Abstract: An apparatus and a method for detecting traffic channel signal transmission in a rake receiver may advantageously ensure stable and accurate detection performance in performing continuous/discontinuous transmission detection of traffic channels with a rake receiver in a mobile communication system based upon CDMA 2000 standards by making sufficiently spaced distribution in traffic channel signal-to-noise ratios estimated in continuous/discontinuous transmission. The method includes compensating traffic channel signals according to fingers, respectively, by using estimated pilot channel signals; combining the compensated finger-based traffic channel signals and estimating signal-to-noise ratios for traffic channels; and comparing the estimated signal-to-noise ratios with a preset threshold value, respectively, to detect continuous or discontinuous transmission of the traffic channels based upon comparison results.

Abstract translation: 用于检测耙式接收机中的业务信道信号传输的装置和方法可以有利地确保在基于CDMA 2000标准的基于CDMA 2000标准的基于CDMA 2000标准的耙式接收机执行业务信道的连续/不连续传输检测时的稳定和准确的检测性能， 在连续/不连续传输中估计的业务信道信噪比间隔分布。 该方法包括通过使用估计的导频信道信号分别根据手指补偿业务信道信号; 组合经补偿的基于手指的业务信道信号并估计业务信道的信噪比; 以及分别将估计的信噪比与预设阈值进行比较，以基于比较结果检测业务信道的连续或不连续传输。

公开(公告)号：US20080049815A1

公开(公告)日：2008-02-28

申请号：US11907423

申请日：2007-10-12

Applicant: Shigeyuki Sudo ,  Osamu Hasegawa ,  Toshiya Eguchi

Inventor： Shigeyuki Sudo ,  Osamu Hasegawa ,  Toshiya Eguchi

IPC: H04B1/707

CPC classification number: H04B1/70756 ,  H04B1/707 ,  H04B1/7075 ,  H04B2201/70709 ,  H04W52/029 ,  Y02D70/26 ,  Y02D70/40

Abstract: A receiver for the CDMA system which reduces power consumption during a suspension period of intermittent receiving operation by monitoring a suspension period by a low-power timer so that a VC-TCXO, reference signal group generation and receiving units are turned off and a modem unit is set to a sleep state. Upon resumption of receiving operation, a high-accuracy timer is started to count a time period and part of a received signal is stored. A PN code phase of stored data is calculated during the time period to obtain an indication value for phase deviation. State vectors for short and long codes and a further reception time are calculated based on the indication value. When the high-accuracy timer counts the time period and produces 0V(d), demodulation operation by a rake demodulation, demultiplexing, and descrambler units is started and is continued during the reception time.

Abstract translation: 一种用于CDMA系统的接收机，其通过由低功率定时器监视暂停时段来减少在间歇接收操作的暂停时间段期间的功耗，从而关闭VC-TCXO，参考信号组生成和接收单元以及调制解调器单元 被设置为睡眠状态。 在恢复接收操作时，开始高精度定时器对一段时间进行计数，并存储接收信号的一部分。 在该时间段内计算存储数据的PN码相位，以获得相位偏差的指示值。 基于指示值计算短码和长码的状态向量和另外的接收时间。 当高精度定时器对时间段进行计数并产生0V（d）时，起动解调，解复用和解扰器单元的解调操作开始并且在接收时间期间继续。

公开(公告)号：US07327775B1

公开(公告)日：2008-02-05

申请号：US09471857

申请日：1999-12-23

Applicant: Qizheng Gu

Inventor： Qizheng Gu

IPC: H04B1/173 ,  H04L27/30 ,  H04L27/28 ,  H04K1/00

CPC classification number: H04B1/707 ,  H04B1/692 ,  H04B2201/70709 ,  H04L5/026

Abstract: A signal reception method including method and apparatus for receiving a signal, down converting the received signal through multi-tone down conversion to form an intermediate signal, and decoding the intermediate signal to extract data. In an embodiment, the received signal may include multiple transmission bands of a multi-code (MC)-CDMA signal, each of which occupies a different spectrum. Each of the transmission bands also includes an information channel signal. When the received MC-CDMA signal is down converted through multi-tone down conversion, the intermediate signal is formed. The intermediate signal includes a common spectrum that includes an information channel from a plurality of transmission bands. When the intermediate signal is decoded, data from a plurality of information channel bands is extracted. The method and apparatus may be implemented in a multi-mode MC-CDMA/CDMA receiver.

Abstract translation: 一种信号接收方法，包括用于接收信号的方法和装置，通过多音降下转换下变频接收信号以形成中间信号，以及解码中间信号以提取数据。 在一个实施例中，接收的信号可以包括多码（MC）-CDMA信号的多个传输频带，每个信号占用不同的频谱。 每个传输频带还包括信息信道信号。 当接收到的MC-CDMA信号通过多音调降频转换被下变频时，形成中间信号。 中间信号包括包含来自多个传输频带的信息信道的公共频谱。 当解码中间信号时，提取来自多个信息频带的数据。 该方法和装置可以在多模MC-CDMA / CDMA接收机中实现。

公开(公告)号：US07301987B2

公开(公告)日：2007-11-27

申请号：US09778818

申请日：2001-02-08

Applicant: Ofir Edlis ,  Roni Shoev

Inventor： Ofir Edlis ,  Roni Shoev

IPC: H04B1/69 ,  H04B17/07

CPC classification number: H04B1/7075 ,  H04B2201/70709

Abstract: A method including searching for a communication channel by activating a receiver having a radio frequency (RF) module and a baseband module for storing a portion of received signals within a first time period, de-activating the RF module of the receiver, and background processing the portion of the received signals with a variable clock rate within a second time period.

Abstract translation: 一种方法，包括通过激活具有射频（RF）模块的接收机和用于在第一时间段内存储接收信号的一部分的基带模块来搜索通信信道，去激活接收机的RF模块和后台处理 在第二时间段内具有可变时钟速率的接收信号的部分。

公开(公告)号：US20070242641A1

公开(公告)日：2007-10-18

申请号：US11787014

申请日：2007-04-13

Applicant: Dong-Ryeol Ryu ,  Hi-Chan Moon ,  Yoo-Chang Eun

Inventor： Dong-Ryeol Ryu ,  Hi-Chan Moon ,  Yoo-Chang Eun

IPC: H04B7/216

CPC classification number: H04B1/7117 ,  H04B2201/70709 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/24 ,  Y02D70/25 ,  Y02D70/40

Abstract: A rake reception apparatus for determining whether a paging channel is received in a mobile terminal using a Discontinuous Reception (DRX) mode. A searcher searches for a multi-path signal using a received signal output from a Radio Frequency (RF) part, and calculates an energy value for each hypothesis. A demodulator demodulates a Paging Indicator (PI) for a hypothesis for which an energy value calculated by the searcher exceeds a valid path threshold. A controller determines whether a paging channel is received, according to the demodulated signal output from the demodulator, and performs finger allocation using a multi-path search of the searcher if it is determined that the paging channel is transmitted.

Abstract translation: 一种用于确定在使用不连续接收（DRX）模式的移动终端中是否接收到寻呼信道的耙式接收装置。 搜索者使用从射频（RF）部分输出的接收信号来搜索多径信号，并且计算每个假设的能量值。 解调器解调寻呼指示符（PI），用于由搜索者计算的能量值超过有效路径阈值的假设。 控制器根据从解调器输出的解调信号来确定是否接收到寻呼信道，并且如果确定寻呼信道被发送，则使用搜索者的多路径搜索来执行手指分配。

公开(公告)号：US07133702B2

公开(公告)日：2006-11-07

申请号：US10318695

申请日：2002-12-12

Applicant: Messay Amerga ,  Sudhir Halbhavi

Inventor： Messay Amerga ,  Sudhir Halbhavi

IPC: H04Q7/22 ,  H04B1/40

CPC classification number: H04W48/20 ,  H04B1/70753 ,  H04B1/70754 ,  H04B1/70756 ,  H04B2201/70702 ,  H04B2201/70709 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0245 ,  Y02D70/24 ,  Y02D70/40

Abstract: Techniques for cell reacquisition and reselection that increases time spent in low-power mode while effectively monitoring neighbor cells are disclosed. In one aspect, one or more windows around the expected location of the serving cell are searched in the period of time prior to the page indicator. In another aspect, intra-frequency neighbor cells are searched first to determine reselection candidates. Various other aspects are also presented. These aspects have the benefit of increasing time spent in low-power mode, thereby reducing power consumption and increasing standby time.

Abstract translation: 公开了用于在有效监测相邻小区的同时增加在低功率模式下花费的时间的用于小区重新获取和重新选择的技术。 在一个方面，在页面指示符之前的时间段内搜索围绕服务小区的预期位置的一个或多个窗口。 在另一方面，首先搜索频率内相邻小区以确定重选候选。 还提出了各种其他方面。 这些方面具有增加在低功率模式下花费的时间的优点，从而降低功耗并增加待机时间。

公开(公告)号：US20060133458A1

公开(公告)日：2006-06-22

申请号：US11312539

申请日：2005-12-21

Applicant: Masayoshi Ueno

Inventor： Masayoshi Ueno

IPC: H04B1/707

CPC classification number: H04B1/70754 ,  H04B1/7117 ,  H04B2201/70702 ,  H04B2201/70709

Abstract: A receiving equipment adjusts a path search window width in path search processing according to the saved timing information, after saving a timing information detected at the time of cell search processing. A Radio Frequency (RF) unit receives signals which are sent from a base station and transmitted via a plurality of paths (multi-pass). A cell search unit detects scrambling codes peculiar to the base station in received signals and generates timing information corresponding to multi-pass when the same scrambling code is detected in a plurality of timings. A path timing memory unit saves each of the timing information on each of the multi-pass. A path search unit controls search window width and search start timing in reference to the timing information of the same scrambling code to perform path search.

Abstract translation: 在保存在小区搜索处理时检测到的定时信息之后，接收设备根据保存的定时信息来调整路径搜索处理中的路径搜索窗口宽度。 射频（RF）单元接收从基站发送并通过多个路径（多遍）发送的信号。 小区搜索单元在接收到的信号中检测到基站特有的扰码，并且在多个定时中检测到相同的扰码时，生成与多遍对应的定时信息。 路径定时存储单元将每个多路径上的定时信息保存。 路径搜索单元参照相同扰码的定时信息来控制搜索窗口宽度和搜索开始时刻，以执行路径搜索。

公开(公告)号：US07031271B1

公开(公告)日：2006-04-18

申请号：US09314819

申请日：1999-05-19

Applicant: Christopher Peter LaRosa ,  Brian David Storm ,  Michael John Carney ,  Tracie Ann Schirtzinger

Inventor： Christopher Peter LaRosa ,  Brian David Storm ,  Michael John Carney ,  Tracie Ann Schirtzinger

IPC: H04Q7/00 ,  G08C7/00

CPC classification number: H04B1/70752 ,  H04B1/70751 ,  H04B1/70753 ,  H04B1/70756 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04B2201/70707 ,  H04B2201/70709

Abstract: A method of activating a radiotelephone operable in a spread-spectrum multiple access radiotelephone system. A searcher receiver (114) is activated, and the searcher receiver (114) acquires a PN sequence timing of a pilot signal. At least one demodulation branch (122) is activated after activation of the searcher receiver (114), and the demodulation branch synchronizes to the PN sequence timing of the selected pilot signal after the searcher receiver (114) has acquired the PN sequence timing.

Abstract translation: 一种激活在扩频多址无线电话系统中可操作的无线电话的方法。 搜索器接收器（114）被激活，并且搜索器接收器（114）获取导频信号的PN序列定时。 在搜索器接收机（114）激活之后，至少一个解调分支（122）被激活，并且在搜索器接收器（114）获取了PN序列定时之后，解调支路与所选导频信号的PN序列定时同步。